package java8_11;

/**
 * @author oldliu
 * @since 1.0
 */
public class Arr1 {
    public static void main(String[] args) {
        //长度为4的一个数组，代表4个double类型
        double[] a=new double[4];

        a[0]=99;
        a[1]=77;
        a[2]=75;
        a[3]=100;
        System.out.println(a);
        System.out.println(a[0]);
        System.out.println(a[1]);
        //a[-1]=55;
        //double []b=new double[2100000000];
    }
}
